最伟大的真理常常是我们无法用语言表达的。
【释义】:教导媳妇要在刚过门时开始,教育孩子要从婴儿时期抓起。  
The truth is you don't know what is going to happen tomorrow. Life is a crazy ride, and nothing is guaranteed.
In preparing for battle I have always found that plans are useless, but planning is indispensable.